This compact Li-ion battery charging set combines four 3.7 V 18650 rechargeable cells with a single-slot USB-powered charger in a blue housing. Each cell is constructed from Li-ion material and rated at 11.1 W, offering consistent output without memory effect for reliable use in flashlights, headlamps, and similar devices. The charger measures 2.55 x 2.55 x 0.7 inches and runs on any standard USB port, including wall adapters, power banks, and computer connections, eliminating the need for a dedicated power outlet.
Integrated circuit safeguards protect both the charger and battery: overvoltage, overcurrent, and short-circuit protection combine with antireverse insertion and zerovoltage activation, promoting safe operation each time. An automatic cutoff function halts current when a cell reaches full capacity, preventing overcharge while the heatdissipating design helps maintain stable temperatures. The unit accepts 100240 V AC input via USB, making it suitable for international use. With a weight under half a pound and a footprint small enough to slip into a bag, the set supports onthego charging and storage for outdoor activities.
Product Details
- Size: 65mm x 65mm x 18mm (2.55in x 2.55 in x 0.7 in) No memory effect Environmentally friendly 100% Brand New
- Package Includes: 2 x USB Charger 4 x R18650 Batteries
- Power supply mode: USB Charger
- Input power: 100-240V_50-60Hz
- Product Weight: 0.2 kg
- Pieces per Package: 1
- Battery Type: 18650 Rechargeable Battery(Not AA or AAA battery)